Strawberry plant named ‘DrisStrawTwo’

ABSTRACT

This invention relates to a new and distinct cultivar of strawberry plant named ‘DrisStrawTwo’. The new cultivar is primarily characterized by its large fruit size, heavy fruit production, and resistance to powdery mildew.

Genus and species: Fragaria×ananassa.

Variety denomination: ‘DrisStrawTwo’.

BACKGROUND OF THE NEW PLANT

The present invention relates to a new and distinct strawberry cultivardesignated ‘DrisStrawTwo’ and botanically known as Fragaria×ananassa.This new strawberry cultivar originated from a controlled cross between‘Driscoll Camarillo’ (U.S. Plant Pat. No. 14,771) and ‘Driscoll Marin’(U.S. Plant Pat. No. 15,375). The original seedling of the new cultivarwas asexually propagated by stolons at a nursery in Shasta County,Calif. Propagules were transplanted to a controlled breeding plot inVentura County, Calif. where it was identified and selected for furtherevaluation in October, 2002. ‘DrisStrawTwo’ was subsequently asexuallypropagated and underwent further testing at various locations inMonterey County, Calif. for four years. The present invention has beenfound to retain its distinctive characteristics through successiveasexual propagations.

DESCRIPTION OF THE PHOTOGRAPHS

The accompanying color photographs show typical specimens of the newcultivar at various stages of development as nearly true as it ispossible to make in color reproductions.

FIG. 1 shows overall plant habit including fruit at various stages ofdevelopment.

FIG. 2 shows leaves of the plant with three leaflets.

FIG. 3 shows both the upperside and underside of several of the flowers.

FIG. 4 shows the whole fruit.

FIG. 5 shows the fruit in longitudinal cross-section.

DESCRIPTION OF THE NEW CULTIVAR

The following description of a 10 month old plant ‘DrisStrawTwo’ isbased on observations taken during the 2006 growing season in MontereyCounty, Calif. This description is in accordance with UPOV terminology.Color designations, color descriptions, and other phenotypicaldescriptions may deviate from the stated values and descriptionsdepending upon variation in environmental, seasonal, climatic andcultural conditions. ‘DrisStrawTwo’ has not been observed under allpossible environmental conditions. Color terminology follows The RoyalHorticultural Society Colour Chart, London (R.H.S.) (2001).

DETAILED BOTANICAL DESCRIPTION

Table 1 shows plant characteristics of the new variety compared withplant characteristics of the parents, ‘Driscoll Camarillo’ and ‘DriscollMarin’. Plant characteristics include plant habit, vigor, leaf shape incross section, fruit length in centimeters, yield in grams per plant andreaction to powdery mildew.

TABLE 1 ‘Driscoll Characteristic ‘DrisStrawTwo’ ‘Driscoll Camarillo’Marin’ Habit Flat globose Globose Flat Vigor Medium Medium Weak Leafshape in Flat Concave Slightly cross section concave Powdery ResistantBetween susceptible & Moderately mildew highly susceptible susceptible

Table 2 shows leaf characteristics of the new cultivar compared withleaf characteristics of ‘Driscoll Camarillo’ and ‘Driscoll Lanai’ (U.S.Plant Pat. No. 15,145). Leaf characteristics include terminal leafletlength and width in centimeters, length to width ratio, number of teethper terminal leaflet, shape of teeth, color of upperside and undersideof leaf, leaf shape in cross section, leaf blistering, leaf glossiness,number of leaflets, shape of leaf margin and shape of leaf base.

TABLE 2 Leaf ‘Driscoll Characteristic ‘DrisStrawTwo’ Camarillo’‘Driscoll Lanai’ Terminal leaflet 0.76 0.71 0.76 length (cm) Terminalleaflet 0.71 0.75 0.74 width (cm) Terminal leaflet 1.06 0.95 1.02length/width ratio No. teeth/terminal 20 23 21 leaflet Shape of teethObtuse Rounded Rounded Color of RHS 147A RHS 147A RHS 139A upperside ofleaf Dark yellow green Dark yellow Dark green green Color of RHS 147BRHS 138B RHS 138B underside of leaf Dark yellow green Dark green Darkgreen Leaf shape in Flat Concave Between slightly cross section concave& flat Leaf blistering Strong Very strong Medium Leaf glossiness MediumBetween Weak medium & strong No. leaflets Three only Three only Threeonly Terminal leaflet Between revolute Between Between revolute margin &flat revolute & & flat flat Terminal leaflet Rounded Rounded Roundedbase shape

Table 3 shows information about the petiole, the petiolule, the bract,and the stipule of the new cultivar compared to ‘Driscoll Camarillo’ and‘Driscoll Lanai’. This includes petiole length in centimeters, petiolediameter in centimeters, petiolule length in centimeters, petiolulediameter in centimeters, bract frequency per petiole, stipule length incentimeters, stipule width in centimeters, stipule pubescence, petiolepubescence, pose of hairs on the petiole, color of the petiole and colorof the petiolule.

TABLE 3 ‘Driscoll ‘Driscoll Characteristic ‘DrisStrawTwo’ Camarillo’Lanai’ Petiole length (cm) 18.8 16.8 18.3 Petiole diameter 0.286 0.3310.260 (cm) Petiole pubescence Dense Sparse Medium Petiole pose of hairsOutwards Outwards Downwards Petiole color RHS 145A RHS 149A RHS 145AMedium yellow Light yellow Medium yellow green green green Petiolulecolor RHS 145B RHS 144B RHS 145A Medium yellow Medium yellow Mediumyellow green green green Petiolule length 1.590 1.376 1.308 (cm)Petiolule diameter 0.185 0.194 0.148 (cm) Bract frequency 0 0 0 Stipulelength (cm) 3.8 4.0 3.3 Stipule width (cm) 0.794 0.866 0.550 Stipulepubescence Sparse Sparse Between medium & dense

Table 4 shows stolon characteristics of the new cultivar compared to‘Driscoll Camarillo’ and ‘Driscoll Lanai’. These characteristics includethe number of stolons, the anthocyanin coloration of the stolons, thethickness of the stolons, the pubescence of the stolons, and the averagenumber of daughter plants.

TABLE 4 ‘Driscoll ‘Driscoll Characteristic ‘DrisStrawTwo’ Camarillo’Lanai’ Stolon Number Medium Medium Many Stolon Anthocyanin Strong MediumStrong Stolon Thickness Thin Between Between Medium & Medium & ThickThick Stolon Pubescence Sparse Medium Dense Average Number of DaughterPlants (Nursery 17 N/A 67 Average)

Table 5 shows inflorescence characteristics of the new cultivar comparedto ‘Driscoll Camarillo’ and ‘Driscoll Lanai’. These characteristicsinclude inflorescence position relative to foliage, relative flowersize, flower diameter in centimeters (measured from petal tip to petaltip), relative spacing of petals, petal length in centimeters, petalwidth in centimeters, petal length to width ratio, petal color, calyxdiameter in centimeters (measured on back of flower from sepal tip tosepal tip), diameter of calyx relative to corolla, diameter of innercalyx relative to outer, sepal length in centimeters (measured fromsepal tip to point of attachment to receptacle), sepal width incentimeters, receptacle color and anther color.

TABLE 5 ‘Driscoll ‘Driscoll Characteristic ‘DrisStrawTwo’ Camarillo’Lanai’ Inflorescence Above Above Between level position relative to with& above foliage Flower size Medium Medium Medium Flower diameter 2.5492.698 2.518 (cm) Petal spacing Overlapping Overlapping Overlapping Petallength (cm) 1.156 1.275 1.103 Petal width (cm) 1.197 1.367 1.146 Petallength/width 0.97 0.93 0.96 ratio Petal color RHS 155D RHS 155B RHS 155CWhite White White Calyx diameter (cm) 3.260 3.236 3.469 Calyx diameterLarger Between Between same relative to corolla smaller & size & largersame size Inner calyx diameter Between same Same size Larger relative toouter size & larger Sepal length (cm) 1.108 1.118 1.187 Sepal width (cm)0.608 0.709 0.630 Receptacle color RHS 2A RHS 1A RHS 1B Yellow Greenyellow Green yellow Anther color RHS 15B RHS 17A RHS 9A Yellow orangeYellow orange Yellow orange

Table 6 shows fruit characteristics of the new cultivar compared to‘Driscoll Camarillo’ and ‘Driscoll Lanai’.

TABLE 6 ‘Driscoll ‘Driscoll Characteristic ‘DrisStrawTwo’ Camarillo’Lanai’ Fruiting truss length 31.6 27.6 24.0 (cm) Fruiting trussProstrate Prostrate Prostrate attitude Fruit length (cm) 4.51 3.59 3.63Fruit width (cm) 3.59 3.29 3.48 Fruit length/width 1.26 1.09 1.04 ratioFruit weight (g) 24.7 20.6 24.2 Relative fruit size Large Between Mediummedium & large Predominant fruit Conical Cordate Between shape conical &ovoid Difference in shape Moderate Slight Slight between primary &secondary fruits Band without Medium Absent or very Between achenesnarrow narrow & medium Unevenness of fruit Absent or very Weak Weaksurface weak Fruit skin color RHS 45A RHS 46A RHS 45B Red Red Orange redEvenness of fruit Even Even Even color Fruit glossiness Strong StrongStrong Insertion of achenes Between level Below surface Level with withsurface & surface above surface Achene coloration - RHS 179A RHS 184BRHS 185B sunward side of Greyed red Greyed purple Greyed berry purpleAchene coloration - RHS 3A RHS 13B RHS 154B shaded side of berry YellowYellow Yellow green Achenes per berry 233.7 224 226.8 Insertion of calyxSet above fruit In a basin Level Pose of calyx Between Reflexed Betweensegments spreading & spreading & reflexed reflexed Size of calyx inSmaller Smaller Smaller relation to fruit Adherence of calyx MediumStrong Strong Firmness of flesh Firm Firm Medium Evenness of flesh EvenSlightly uneven Uneven color Color of flesh RHS 44C & RHS RHS 34B & RHS47C 155B RHS 155A Orange red Orange red & Orange red & white whiteHollow center Absent Between absent Medium & small Sweetness MediumMedium Medium Texture when tasted Medium Medium Fine Harvest maturityMid-season Between early Late & mid-season Type of bearing Fullyeverbearing Fully Partially everbearing everbearing Grams of fruit/plant1,654.7 1,485.1 1,420.4

Table 7 shows pest and disease characteristics of the new cultivarcompared to ‘Driscoll Camarillo’ and ‘Driscoll Lanai’.

TABLE 7 ‘Driscoll Pest or Disease ‘DrisStrawTwo’ ‘Driscoll Camarillo’Lanai’ Tetranychus Susceptible Moderately Susceptible urticae (2-spottedSusceptible spider mite) Lygus hesperus Susceptible SusceptibleSusceptible (Lygus bug) Botrytis fruit rot Moderately Between moderatelySusceptible Susceptible resistant & moderately susceptible Powderymildew Resistant Between susceptible Susceptible & highly susceptibleVerticillium wilt Susceptible Moderately Moderately Susceptibleresistant Strawberry mottle Moderately Moderately resistant Moderatelyvirus resistant resistant Xanthomonas Moderately Moderately resistantModerately fragariae Susceptible Susceptible

1. A new and distinct cultivar of strawberry plant as described andshown herein.